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参数资料
| 型号： | AD9059PCB |
| 厂商： | Analog Devices, Inc. |
| 英文描述： | Dual 8-Bit, 60 MSPS A/D Converter |
| 中文描述： | 双8位，60 MSPS的A / D转换 |
| 文件页数： | 4/12页 |
| 文件大小： | 190K |
| 代理商： | AD9059PCB |
AD9059
–4–
REV. 0
PIN DE SCRIPT IONS
Pin No.
Name
Function
1, 28
AINA, AINB
Analog Inputs for ADC A and B.
2
VREF
Internal Voltage Reference (+2.5 V
T ypical); Bypass with 0.1
μ
F to
Ground or Overdrive with External
Voltage Reference.
Power-Down Function Select;
Logic HIGH for Power-Down
Mode (Digital Outputs Go to High-
Impedance State).
Analog +5 V Power Supply.
Ground.
Digital Output Power Supply.
Nominally +3 V to +5 V.
Digital Outputs of ADCA.
Digital Outputs of ADCB.
Encode Clock for ADCs A and B
(ADCs Sample Simultaneously On
the Rising Edge of ENCODE).
3
PWRDN
4, 25
5, 24, 27
6, 23
V
D
GND
V
DD
7–14
22–15
26
D7A–D0A
D7B–D0B
ENCODE
T able I. Digital Coding (VRE F = +2.5 V)
Analog Input
Voltage Level
Digital Output
3.0 V
2.502 V
2.498 V
2.0 V
Positive Full Scale
Midscale + 1/2 LSB
Midscale – 1/2 LSB
Negative Full Scale
1111 1111
1000 0000
0111 1111
0000 0000
N
N + 3
N + 5
N + 1
N + 2
N + 4
t
A
t
V
t
PD
t
EH
t
EL
N – 3
N – 2
N – 1
N
N + 1
N + 2
ENCODE
AIN
DIGITAL
OUTPUTS
t
A
t
EH
t
EL
t
V
t
PD
APERTURE DELAY
PULSE WIDTH HIGH
PULSE WIDTH LOW
OUTPUT VALID TIME
OUTPUT PROP DELAY
6.7ns
6.7ns
4.0ns
2.7ns
6.6ns
9.5ns
166ns
166ns
14.2ns
MIN
TYP
MAX
Figure 1. Timing Diagram
PIN CONFIGURAT ION
14
13
12
11
10
17
16
15
19
18
20
28
27
26
25
24
23
22
21
9
8
1
2
3
4
7
6
5
TOP VIEW
(Not to Scale)
AD9059
AINA
V
D
GND
ENCODE
GND
AINB
VREF
PWRDN
V
D
D7B (MSB)
V
DD
GND
V
DD
D7A (MSB)
D6A
D5A
D4A
D4B
D5B
D6B
D3A
D2A
D1A
D0A (LSB)
D3B
D0B (LSB)
D1B
D2B
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| AD9059 | Dual 8-Bit, 60 MSPS A/D Converter |
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